Question

Solve the following system of equations by substitution.
x + y = 5
y = 3
A. (-2, 3)
B. (2, -3)
C. (0, 0)
D. (2, 3)

Answer 1

Sub in y
x+3=5
Now solve for x:

Answer 2

2?

Answer 3

Yup, so (2, y)
and y is given as: 3
So...

Answer 4

so the answer is D! aww thanx luigy! <3 im gonna miss u so much ur the only one that i understand when u explain to me :) i love u pal!

Answer 5

No problem, and there's always nin ;)

Answer 6

May I jump right in? it seems intuitive that we can tell 2 is the right answer, but we want to make sure that we show systematically how that is so.

x+y = 5; y =3
x+3=5
x+3-3=5-3
x+0 = 2
x=2;y3
(2,3)

Answer 7

^ See

Answer 8

hahaha oh i love you guys... :)